Science & Mathematics - 18 February 2007

I am looking for a book about general relativity in which the topic is discussed more intuitively than math..although I know math. but I prefer to catch the idea first then go to details.....any suggestion? thanks

2007-02-18 17:51:30 · 2 answers · asked by expiton 1 in Physics

The difference of two positive numbers is 91. The larger number (minuend) is 5 less than 5 times the smaller number (subtrahend). What are the two numbers? Define variables, set up equation(s) and solve

2007-02-18 17:50:45 · 9 answers · asked by nazerbean1 1 in Mathematics

Do you come full circle in some sort of understanding?

2007-02-18 17:49:55 · 5 answers · asked by Anonymous in Mathematics

I need websites, or the link to the pictures :)
Please, it's important :O

2007-02-18 17:43:57 · 5 answers · asked by MoonLady 2 in Weather

in may of 05. I was in phoenix az when i first seen these lights. About 3am i was alone sitting on the patio. looking at the sky seeing shooting stars.
Now my ideas about aliens have left me being called gullible so ill say im very open minded. just remember 'too much skepticism only retards progress'
these lights i seen were slightly dimmer than the stars, same size, but moving. the caught my eye at first and all most scared me because i was staring when the stars began to move. there were three lights in a triangle shape moving across the sky to disappear in the horizon.
Then in July 2005 in Loveland co i was telling that same story to my sis and her friends under the stars. about an hour later i looked straight up at the same three lights moving at the same speed. This time i have three witnesses These lights are individuals because they broke apart to chase each other in a perfect circle so fast, they looked like a solid ring, to fly apart in dif directions(I have more details)

2007-02-18 17:43:30 · 15 answers · asked by j 1 in Paranormal Phenomena

2007-02-18 17:43:16 · 5 answers · asked by Anonymous in Earth Sciences & Geology

Out of igneous and sedimentary?

2007-02-18 17:42:04 · 2 answers · asked by Anonymous in Earth Sciences & Geology

Trent can deliver his newspaper in 30 min. It takes Lois 20 min. to do the same route. How long will it take them to deliver the newspaper if they work together?

2007-02-18 17:40:42 · 5 answers · asked by ReelTru 4 in Mathematics

Is it possible to prevent dialation of the pupils (other than not using) while ona drug? or to undialate them while on them?

2007-02-18 17:40:28 · 2 answers · asked by Anonymous in Medicine

I recently heard on AOL that theres a possiblity that one will hit the earth in 2032 i believe. What are your views ont his? What do you think we can do to ''prevent'' it or atleast be more safe?




By the way...isn't it funny how britney spear's shaving her head is more eye-catching than this?! =P haha

2007-02-18 17:36:30 · 6 answers · asked by Dawn 1 in Astronomy & Space

2007-02-18 17:35:29 · 14 answers · asked by jigar kARANIA 1 in Astronomy & Space

Demand Equation, R= XP

the price p and the quantity x sold of a certain product obey the demand equation

x= -5p + 100, 0 less than or equal to (p) less than or equal to 20

(a) express the revenue r as a function of x.
(b) what is the revenue if 15 units are sold?
(c) what quantity x maximizes revenue? what is the maximum revenue?
(d) what price should the company charge to maximize revenue?

I DONT UNDERSTAND THIS STUFF VERY WELL SO PLEASE BE DETAILED.

2007-02-18 17:30:38 · 3 answers · asked by Jackie G 1 in Mathematics

2007-02-18 17:29:55 · 3 answers · asked by naga 1 in Physics

Determine which two equations represent perpendicular lines. Explain your choice.(a) y = 5/3 x – 3 (b) y = 3x –5/3 (c) y = -1/3x +5/3 (d) y =1/3x –5/3

2007-02-18 17:29:48 · 5 answers · asked by nazerbean1 1 in Mathematics

Figure:
http://www.geocities.com/h61pri_g19/images/bjt.jpg

Figure 1 without the additional resistor.
Figure 2 with the additional resistor (R5) attached.

2007-02-18 17:29:18 · 6 answers · asked by AlexTan 3 in Engineering

2007-02-18 17:29:10 · 5 answers · asked by ReelTru 4 in Mathematics

2007-02-18 17:29:01 · 2 answers · asked by ralph s 1 in Geography

2007-02-18 17:27:08 · 4 answers · asked by naga 1 in Physics

when should you take "vale" before taking a drug test?

2007-02-18 17:26:47 · 1 answers · asked by Anonymous in Medicine

How do I integrate this?

2007-02-18 17:25:51 · 3 answers · asked by Anonymous in Mathematics

2007-02-18 17:24:32 · 3 answers · asked by naga 1 in Physics

2007-02-18 17:22:51 · 2 answers · asked by shawnise s 1 in Chemistry

2NO2(g) ↔ N2O4(g) is an equilibrium reaction at 25oC, where Kp = 8.77 atm^-1.
If the equilibrium partial pressure of NO2(g) is 0.250 atm, what is the equilibrium partial pressure of N2O4(g) in atm ?

Any help would be greatly appreciated!!!

2007-02-18 17:22:11 · 2 answers · asked by nietzsche 1 in Chemistry

2007-02-18 17:21:46 · 6 answers · asked by cannon 1 in Earth Sciences & Geology

at metaphase of mitosis, each chromosomeas consists of ___ chromatid(s) and ___ centromere(s)
a. 1,1
b. 2,1
c. 2,2
d. 1,2

2007-02-18 17:21:41 · 6 answers · asked by iloverocknroll09 1 in Biology

2007-02-18 17:21:30 · 3 answers · asked by cyrus k 1 in Earth Sciences & Geology

We're doing this lab called an amgen lab where you take the genetic information in bacteria called a plasmid and you put it in another plasmid. It's kind of like two donuts switching pieces. So, after we did the electrophoresis (it's where you put the plasmids in a machine that puts electricity through it to see how charged the particles are) and we have to answer questions. We have to examine the data from the electrophoresis and the question is "Is there evidence of more than one form of multimer?" What the heck does that mean? I need an answer from a chemist or something that understands what the heck I'm doing. If you can't answer this question, if you understand the slightest bit what I'm talking about, can you explain it to me? I need serious help. If you don't even think I'm speaking english don't even bother to answer. Thanks.

2007-02-18 17:20:36 · 1 answers · asked by vallygrl 4 in Chemistry

2007-02-18 17:20:20 · 6 answers · asked by b 4 in Medicine

Winston works faster. Winston can mow his dad's lawn in 1 hour less than it
takes his brother Willie. If they take 2 hours to mow it when working
together, then how long would it take Winston working alone?

2007-02-18 17:15:40 · 6 answers · asked by Anonymous in Mathematics

A cicle's area is decreasing at a rate of 2Pi cm^2 /second. The area of the circle is 75Pi cm^2

At what rate is the radius of the circle decreasing?

2007-02-18 17:14:38 · 6 answers · asked by Dr. Daniel 2 in Mathematics